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https://issues.apache.org/jira/browse/TEZ-3465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15623698#comment-15623698
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Ming Ma commented on TEZ-3465:
------------------------------

[~aplusplus] sorry for the delay. The patch looks good overall.

* Why does it track configured state for CP different from running state for 
broadcast?
* Maybe update CartesianProduct sample to include the broadcast option.
* Nit: numCPSrcNotInConfigureState -> numCPSrcNotInConfiguredState.

> Support broadcast edge into cartesian product vertex and forbid other edges
> ---------------------------------------------------------------------------
>
>                 Key: TEZ-3465
>                 URL: https://issues.apache.org/jira/browse/TEZ-3465
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Zhiyuan Yang
>            Assignee: Zhiyuan Yang
>         Attachments: TEZ-3465.1.patch, TEZ-3465.2.patch, TEZ-3465.3.patch
>
>
> Cartesian product vertex manager should support other incoming edge type. 
> Currently only broadcast edge is necessary, although potentially more edge 
> types could also be. Custom edge need its own vertex manager which can't work 
> with Cartesian product VM, so it has to be forbade.



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